Let's divide 108869 by 90
Let's see how many times 90 fits into 108869.

Moving on to step 1:
When dividing 1 by 90, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 90

Step 2:
If we divide 10 by 90, we get 0 and a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 10 to get 10.
Grab the next digit (8) from the dividend, add it to 10, then carry on: 108 / 90

Moving on to step 3:
90 goes into 108 1 times with a remainder of 18.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 90 from 108, we get 18.
Fetch the next digit (8) from the dividend, attach it to 18 and continue: 188 / 90

On to step 4:
The number 90 fits into 188 2 times, leaving a remainder of 8.
The next digit of our result is 2. 
Result so far: 12.0
Subtract 180 from 188 to get 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 90

On to step 5:
86 divided by 90 is 0 with a remainder of 86.
Write down 0 as next digit of the result. 
Result so far: 120.0
If we take 0 away from 86, we end up with 86.
Grab the next digit (9) from the dividend, add it to 86, then carry on: 869 / 90

On to step 6:
If we divide 869 by 90, we get 9 and a remainder of 59.
Use 9 as the next digit of our solution. 
Result so far: 1209.0
Deduct 810 from 869 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Advancing to step 7:
90 can be fit into 590 6 times, resulting in a remainder of 50.
Use 6 as the next digit of our solution. 
Result so far: 1209.6
The remainder is 50 after subtracting 540 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 8:
The number 90 fits into 500 5 times, leaving a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 1209.65
The remainder is 50 after subtracting 450 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 9:
When dividing 500 by 90, we get 5 with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 1209.655
If we subtract 450 from 500, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Our division results in 1209.655 with a remaining 0.005.